A body accelerates uniformly from 4 m/s to 12 m/s over 20 m. Acceleration is:

Type: MCQ • Marks: 1

A. 8 m/s²

B. 0.4 m/s²

C. 1.6 m/s²

D. 3.2 m/s²

Explanation

Using v² = u² + 2as: a = (144-16)/(2×20) = 3.2 m/s².

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Class 9th Science (MCQ)

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